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草毡表层
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草毡表层
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农学
土壤诊断表层
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mattic epipedon
草毡表层
高寒草甸植被下具高量有机碳和有机物质、活根与死根根系交织缠结形成的毡状表层。又称草毡层。
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principal component regression method (PCR)
principal component regression spectrophotometry
principal components
principal components analysis
principal component transformation
principal computable enumeration
principal congruence
principal congruence relation
principal congruence subgroup
principal conjecture
principal conjunctive normal form
principal connex
principal convergent
principal coordinates of neighbour matrics
principal crossed homomorphism
principal curvature
principal curve
principal curves
principal deformation
principal determinant
principal diagonal
principal diameter
principal dielectric axes
principal direction
principal direction of curvature
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